I was in Sydney for 8 full days (minus the travelling) and bought a 7-day pass. A wonderful pass to have if you plan to explore Sydney. It was hassle free at the ticketing counters and helped us in planning our itinerary in a way as we just went to the attractions and tours covered in the card, which was more than enough to explore and enjoy Sydney! If I were to visit any other cities which offers this card, I would definitely grab one!